Find the Circumference $25 \mathrm { mi }$ A) $50 \pi$ B) $6.25 \pi \mathrm { mi }$

Multiple Choice

Find the circumference. Leave your answer in terms of pi.
-A semicircle with diameter $25 \mathrm { mi }$

A) $50 \pi$
B) $6.25 \pi \mathrm { mi }$
C) $25 \pi \mathrm { mi }$
D) $12.5 \pi \mathrm { mi }$